YearPToutPBase 100
201191.33%100
201295.05%97.9
201394.28%95.7
201495.39%93.6
201596.14%91.4
201698.29%89.3
201798.94%87.1
2018100%85
201992.23%82.9
202049.32%80.7
202179.23%78.6
Evolution : -21 % entre 2011 et 2021 soit 2.17 % de perte par an.